Home / 105,663.39-145,819.22-57,916.73

Finding the Fourth Proportional to 105,663.39, 145,819.22 and 57,916.73

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Solution

The fourth proportional to 105,663.39, 145,819.22 and 57,916.73 is: 79,927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,663.39 : 145,819.22 = 57,916.73 : x
  2. Step 2: Convert to fraction form
    105,663.39/145,819.22 = 57,916.73/x
  3. Step 3: Cross multiply
    105,663.39x = 145,819.22 × 57,916.73
  4. Step 4: Simplify right side
    105,663.39x = 8,445,371,374.87
  5. Step 5: Solve for x
    x = 8,445,371,374.87/105,663.39
  6. Step 6: Final answer
    x = 79,927.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.